The Rocstor Rocbolt Premium and Heavy-Duty Keyed Cable Lock provides a strong & slim 10mm lock head to enhance security for the thinnest laptop Ultrabook devices, Rocbolt security keyed locks provide an exceptional asset security and helps to reduce theft. They are tested for torque/pull, foreign implements, lock lifecycle, corrosion, key strength, and other environmental conditions. Nearly thousands of notebooks and other portable devices are stolen everyday – protect your valuable assets by using the 6ft heavy-duty Rocbolt cable keyed lock system. Two (2) keys are provided with each lock system. Rocstor’s Rocbolt provides a strong and heavy- duty lock head which prevents intruders tampering with the lock. Rocbolt lock comes standard with 6ft galvanized heavy-duty steel cable. Rocbolt security cables are affordable and have two (2) year warranty.